Microscopic examination of randomly sampled protocorms
confirmed the absence and presence of pelotons in protocorms
taken from non-inoculation and inoculation treatments, respectively
(data not shown). At seven weeks after sowing, Stage-5
protocorms could be observed only in germination substrates inoculated
with fungal isolate Da-KP-0-1 and in soil inoculated with
isolate Ps-KT-0-1 (Table 1). About two weeks later, Stage-5 protocorms
were observed in all inoculation treatments but not in
uninoculated controls (partly shown in Fig. 3).